| 摘要 |
The present invention relates to a pharmaceutical preparation for treating apthous ulcers in the human mouth, by rinsing vigorously with a pharmaceutical rinse having a composition comprising ethyl alcohol in a concentration in the order of 50% weight per unit volume and lidocaine in a concentration in the order of 1.0-2.0% weight per unit volume at a periodicity of at least 3 to 4 times daily for thirty seconds each time, followed by expectoration; or by applying the preparation in the form of a lozenge or gel directly to the apthous ulcers.
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